About 10ml a day, between two devices... or add another 6-8ml if I'm Sub-Ohming!!
My Curve 20w is the general EDV one using Savourea's Noisette. Really got the hang of this device, now.
I also have an eVic VT60 with Aspire's Triton for vaping above 60VG, which is currently locked to Cuttwood's Boss Reserve. I'm actually getting on well with the included 1.8Ω coil, as I can dial down to 10-12w and keep it fairly sensible, or up it to 15-20w and blast out a few room-fogger clouds!
The sub-ohm coil is seriously powerful, although I'm still annoyed by the juice that collects in the chimney.
I just signed up for VapeMail which is all 80VG stuff, so looking forward to getting shouted at for über-fogging on some of those!!